refactor: extract EC orchestration into a shared weed/ec package (#10760)

* shell: move ErrorWaitGroup to weed/util

* shell: remove unused CandidateEcNode and EcRack types

* ec: extract EC orchestration logic from weed/shell into weed/ec

Move the EC node/topology model, balance engine, encode pipeline, decode
pipeline, and rebuild engine into a new weed/ec package so shell commands
and maintenance workers can share the logic. Shell commands keep flag
parsing and delegate through a small ec.Env (dial option, topology fetch,
volume locations, lock check). Tests move along with the code.

* shell: remove unused proportional-rebalance type stubs

* ec: move scrub, replication check, and shard unmount engines into weed/ec

* worker: share the EC generation-aware shard counter from weed/ec

* ec: gofmt

* shell: drop EC aliases with no remaining callers

* ec: guard a missing topology hook and nil disk entries in topology helpers

* ec: drop trailing newlines from decode error strings

* ec: re-check the shell lock before applying shard unmounts

* shell: trim -node entries in ec.scrub
This commit is contained in:
Chris Lu authored and GitHub committed 2026-08-14 13:54:12 -07:00
1 parent f66d6ffc4a
commit 944d967502
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+3830 -3648

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